Robert Downey Jr. reprises his role as billionaire industrialist Tony Stark, aka the super hero Iron Man in this sequel to the 2008 blockbuster. RDJ, Paltrow, Cheadle and Rockwell are joined by Samuel L. Jackson as Nick Fury and Mickey Rourke as Whiplash. Jon Favreau once again takes up the directorial reins for Marvel's armored avenger.